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The Dr. Whippy vending machine has a built-in voice stress analyzer. It detects the user’s answers to specific questions and measures how happy or unhappy the user is feeling. The lower their mood, the more ice cream the machine dispenses. That’s enough to sweeten anyone’s day!
“Demitrios Kargotis unwrapped his Mr./Dr. Whippy machine at the Ars Technica festival in Linz Austria,” reported Unusual & New Technologies.